100% brand new & high quality. One unit with two functions: Can check the phase sequence and show the phase is open or not. Small, light and portable. Size: 3.35" x 2.52" x 0.91" International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions., Weight: 0.440924524 Pounds, Manufacturer: Bestdo